Choice Specs (Magnemite) @ Choice Specs  
Ability: Magnet Pull  
EVs: 252 SpA / 4 SpD / 252 Spe  
Modest Nature  
IVs: 3 Atk / 30 SpA / 30 SpD  
- Thunderbolt  
- Flash Cannon
- Hidden Power [Ground]
- Signal Beam / Discharge

Choice Scarf (Magnemite) @ Choice Scarf  
Ability: Magnet Pull  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 3 Atk / 30 SpA / 30 SpD  
- Thunderbolt  
- Flash Cannon  
- Hidden Power [Ground]  
- Discharge / Signal Beam

Substitute (Magnemite) @ Leftovers  
Ability: Magnet Pull  
EVs: 252 SpA / 4 SpD / 252 Spe  
Modest Nature  
IVs: 0 Atk  
- Substitute  
- Thunderbolt  
- Flash Cannon / Hidden Power [Fire]
- Magnet Rise